android studio错误，Error:warning: Ignoring InnerClasses attribute for an anonymous inner class

rror:warning: Ignoring InnerClasses attribute for an anonymous inner class

Error:(com.unionpay.mobile.android.pboctransaction.a) that doesn't come with an

Error:associated EnclosingMethod attribute. This class was probably produced by a

Error:compiler that did not target the modern .class file format. The recommended

Error:solution is to recompile the class from source, using an up-to-date compiler

Error:and without specifying any "-target" type options. The consequence of ignoring

Error:this warning is that reflective operations on this class will incorrectly

Error:indicate that it is *not* an inner class.

大概长上面那样。

这种错误可能会影响打包以及功能，没有无缘无故的错误提示，尽量排查。

1. 大概方向，有类重复引用。比如第三方的jar包里面包含了你工程中已有jar包。可以检查一下jar包。

2. keystore密码错误。

3. 发现jar包内含有反射等地方，会出现此类错误，因stuido生成app时是混淆的，所以请添加混淆规则

在proguard-rules.pro中添加

-keepattributes Signature

-keepattributes EnclosingMethod

4. 此错误只在第一次clean后安装APP出现，打包和之后都不出现，怀疑这种方式可能是as有bug？clean后未生成文件就去检查错误？？？？？？？？

关于此类错误提示，谁有新的解决方案的也请分享下。